b=23120 eliminate defunct changelog_send_thread processes

[fs/lustre-release.git] / lustre / mdc / lproc_mdc.c

diff --git a/lustre/mdc/lproc_mdc.c b/lustre/mdc/lproc_mdc.c
index f55ab46..0983f8d 100644 (file)
--- a/lustre/mdc/lproc_mdc.c
+++ b/lustre/mdc/lproc_mdc.c
@@ -26,7 +26,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  */
 /*
@@ -77,61 +77,65 @@ static int mdc_wr_max_rpcs_in_flight(struct file *file, const char *buffer,
         return count;
 }
 
-static int mdc_changelog_seq_release(struct inode *inode, struct file *file)
+/* temporary for testing */
+static int mdc_wr_kuc(struct file *file, const char *buffer,
+                      unsigned long count, void *data)
 {
-        struct seq_file *seq = file->private_data;
-        struct changelog_seq_iter *csi = seq->private;
-
-        if (csi && csi->csi_llh)
-                llog_cat_put(csi->csi_llh);
-        if (csi && csi->csi_ctxt)
-                llog_ctxt_put(csi->csi_ctxt);
-
-        return (changelog_seq_release(inode, file));
-}
-
-static int mdc_changelog_seq_open(struct inode *inode, struct file *file)
-{
-        struct changelog_seq_iter *csi;
-        int rc;
-        ENTRY;
-
-        rc = changelog_seq_open(inode, file, &csi);
+        struct obd_device *obd = data;
+        struct kuc_hdr *lh;
+        struct hsm_action_list *hal;
+        struct hsm_action_item *hai;
+        int len;
+        int fd, rc;
+
+        rc = lprocfs_write_helper(buffer, count, &fd);
         if (rc)
-                RETURN(rc);
-
-        /* Set up the remote catalog handle */
-        /* Note the proc file is set up with obd in data, not mdc_device */
-        csi->csi_ctxt = llog_get_context((struct obd_device *)csi->csi_dev,
-                                         LLOG_CHANGELOG_REPL_CTXT);
-        if (csi->csi_ctxt == NULL)
-                GOTO(out, rc = -ENOENT);
-        rc = llog_create(csi->csi_ctxt, &csi->csi_llh, NULL, CHANGELOG_CATALOG);
-        if (rc) {
-                CERROR("llog_create() failed %d\n", rc);
-                GOTO(out, rc);
-        }
-        rc = llog_init_handle(csi->csi_llh, LLOG_F_IS_CAT, NULL);
-        if (rc) {
-                CERROR("llog_init_handle failed %d\n", rc);
-                GOTO(out, rc);
-        }
+                return rc;
 
-out:
-        if (rc)
-                mdc_changelog_seq_release(inode, file);
-        RETURN(rc);
+        if (fd < 0)
+                return -ERANGE;
+        CWARN("message to fd %d\n", fd);
+
+        len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
+                /* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
+
+        OBD_ALLOC(lh, len);
+
+        lh->kuc_magic = KUC_MAGIC;
+        lh->kuc_transport = KUC_TRANSPORT_HSM;
+        lh->kuc_msgtype = HMT_ACTION_LIST;
+        lh->kuc_msglen = len;
+
+        hal = (struct hsm_action_list *)(lh + 1);
+        hal->hal_version = HAL_VERSION;
+        hal->hal_archive_num = 1;
+        obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN);
+
+        /* mock up an action list */
+        hal->hal_count = 2;
+        hai = hai_zero(hal);
+        hai->hai_action = HSMA_ARCHIVE;
+        hai->hai_fid.f_oid = 5;
+        hai->hai_len = sizeof(*hai);
+        hai = hai_next(hai);
+        hai->hai_action = HSMA_RESTORE;
+        hai->hai_fid.f_oid = 10;
+        hai->hai_len = sizeof(*hai);
+
+        /* This works for either broadcast or unicast to a single fd */
+        if (fd == 0) {
+                rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
+        } else {
+                cfs_file_t *fp = cfs_get_fd(fd);
+                rc = libcfs_kkuc_msg_put(fp, lh);
+                cfs_put_file(fp);
+        }
+        OBD_FREE(lh, len);
+        if (rc < 0)
+                return rc;
+        return count;
 }
 
-static struct file_operations mdc_changelog_fops = {
-        .owner   = THIS_MODULE,
-        .open    = mdc_changelog_seq_open,
-        .read    = seq_read,
-        .llseek  = changelog_seq_lseek,
-        .release = mdc_changelog_seq_release,
-};
-
-
 static struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
         { "uuid",            lprocfs_rd_uuid,        0, 0 },
         { "ping",            0, lprocfs_wr_ping,     0, 0, 0222 },
@@ -150,7 +154,7 @@ static struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
         { "timeouts",        lprocfs_rd_timeouts,    0, 0 },
         { "import",          lprocfs_rd_import,      0, 0 },
         { "state",           lprocfs_rd_state,       0, 0 },
-        { "changelog",       0, 0, 0, &mdc_changelog_fops, 0400 },
+        { "hsm_nl",          0, mdc_wr_kuc,          0, 0, 0222 },
         { 0 }
 };